1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/net/nfc/nxp,pn544.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: NXP Semiconductors PN544 NFC Controller
8
9 maintainers:
10 - Krzysztof Kozlowski <krzk@kernel.org>
11
12 properties:
13 compatible:
14 const: nxp,pn544-i2c
15
16 reg:
17 maxItems: 1
18
19 interrupts:
20 maxItems: 1
21
22 enable-gpios:
23 description: Output GPIO pin used for enabling/disabling the PN544
24 maxItems: 1
25
26 firmware-gpios:
27 description: Output GPIO pin used to enter firmware download mode
28 maxItems: 1
29
30 required:
31 - compatible
32 - reg
33 - interrupts
34 - enable-gpios
35 - firmware-gpios
36
37 additionalProperties: false
38
39 examples:
40 - |
41 #include <dt-bindings/gpio/gpio.h>
42 #include <dt-bindings/interrupt-controller/irq.h>
43
44 i2c {
45 #address-cells = <1>;
46 #size-cells = <0>;
47
48 nfc@28 {
49 compatible = "nxp,pn544-i2c";
50 reg = <0x28>;
51
52 interrupt-parent = <&gpio1>;
53 interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
54
55 enable-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
56 firmware-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>;
57 };
58 };
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